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Apparatus and method for extracting keyword from single document

A keyword and document technology, applied in the field of natural language processing, can solve time-consuming and labor-intensive problems, achieve the effect of improving the extraction quality, improving the extraction quality, and increasing the probability of being extracted

Inactive Publication Date: 2017-04-05
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The supervised method regards the keyword extraction problem as a classification problem, which requires manual labeling of training data, which is time-consuming and laborious, and is not suitable for the Internet era

Method used

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  • Apparatus and method for extracting keyword from single document
  • Apparatus and method for extracting keyword from single document
  • Apparatus and method for extracting keyword from single document

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Embodiment Construction

[0117] Various preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0118] Method of extracting keywords from single document

[0119] figure 1 It is a flowchart of a method for extracting keywords from a single document according to an embodiment of the present invention.

[0120] Such as figure 1 As shown, firstly, in step S130, key sentences in a single document are extracted as the first key sentence set 10 . In this embodiment, a single document may be any type of document in any language, and this embodiment has no limitation on this.

[0121] Then, enter step S140, and extract target keywords from the first key sentence set 10.

[0122] According to the above method of this embodiment, by extracting key sentences in a single document, and then extracting keywords from the key sentences, the quality of extracting target keywords can be effectively improved. In general, the probability of ap...

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Abstract

The invention provides a method and an apparatus for extracting a keyword from a single document. According to an embodiment, the apparatus for extracting the keyword from the single document comprises a key sentence extraction unit for extracting a key sentence from the single document, and a keyword extraction unit for extracting the keyword from the key sentence.

Description

technical field [0001] Embodiments of the present invention relate to the field of natural language processing, and in particular, relate to a device and method for extracting keywords from a single document. Background technique [0002] In the field of natural language processing, it will involve extracting keywords. As methods for keyword extraction, they can be roughly divided into two categories, namely supervised methods and unsupervised methods. The supervised method regards the keyword extraction problem as a classification problem, which requires manual labeling of training data, which is time-consuming and laborious, and is not suitable for the Internet era. With the advancement of science and technology and the popularization of the Internet, supervised methods are basically rarely used. [0003] Regarding unsupervised methods, in the prior art, there are mainly the following three types: [0004] (1) Method based on TF-IDF and its deformation: its mathematical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27
CPCG06F16/313G06F16/3344G06F16/93G06F16/353
Inventor 薛征山张大鲲郭继冲郝杰
Owner KK TOSHIBA
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